Finding the Third Proportional to 278 and 554
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Solution
The third proportional to 278 and 554 is: 1,104.01
Step by Step Solution
- Step 1: Write the proportion equation
278 : 554 = 554 : x - Step 2: Convert to fraction form
278/554 = 554/x - Step 3: Cross multiply
278x = 554 × 554 - Step 4: Simplify right side
278x = 306,916 - Step 5: Solve for x
x = 306,916/278 - Step 6: Final answer
x = 1,104.01
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Why These Related Problems?
These problems maintain the same ratio (1.99) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.